Table 2.

Factors influencing the anti-SARS-CoV-2 antibody titre (linear regression analysis).

Factors				95.0% Confidence Interval for B
	beta	t	Sig.	Lower Bound	Upper Bound
Age	−21.191	−5.533	0.000	−28.728	−13.654
Days since last vaccine dose	0.497	0.217	0.828	−4.002	4.997
Gender	−147.951	−1.734	0.084	−315.852	19.950